Milling machine



FIG. 1 is a perspective front view of a milling machine showing my new design;

FIG. 2 is a perspective right view thereof;

FIG. 3 is a perspective rear view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a side elevational view taken from the left of FIG. 4;

FIG. 6 is a side elevational view taken from the right of FIG. 4;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a top plan view thereof. 

CLAIM The ornamental design for a milling machine, as shown and described. 